Instructions
Meet the Pomeranian breeder and note the size of the dogs she breeds. If you are interested in a particular litter or the breeder has available puppies, ask the breeder to meet the parent dogs to see their size and weight. If the parents are smaller than average, the puppies in their litter will likely be as well.
Choose the litter's runt. The runt is the smallest and weakest puppy of the litter and generally stays the smallest of its brothers and sisters into adulthood. The runt may have health issues that its litter mates do not have, so it's important to choose a healthy puppy but recognize that your smaller-than-average pup may have special health needs.
Take your puppy to the veterinarian and ask the vet to estimate your puppy's adult size. Veterinarians will intake the information you provide and are trained and experienced to examine the puppy, its features and bone size to provide you with a good estimate. If the vet thinks your puppy may be less than 4 pounds, you likely will have a teacup-size dog.
Estimate your puppy's adult size at six months old, as this age is when your puppy is likely to be 75 to 100 percent done growing. Follow puppy weight charts for a dog of your puppy's weight. For example, dogs 4 to 6 pounds average 1 pound 9 ounces at 10 weeks, and 2 pounds 7 ounces to 3 pounds 11 ounces by 16 weeks. These calculations are mere estimates, and until your dog is fully grown, you may not know whether it will turn out smaller than average.
How to Tell If a Pomeranian Will Be a Teacup Size
The American Kennel Club does not recognize "teacup" Pomeranians as a breed. Adult Pomeranians average 3 to 7 pounds, and teacup typically refers to the smallest average dogs. It's important to recognize that the Pomeranian is a toy breed with only one variation recognized. Unlike other types of dogs, such as Poodles, where the AKC acknowledges different breeds such as toy, miniature and standard, there is no such distinction for Pomeranians. If you desire a smaller than average dog, there are a few ways to tell a Pomeranian pup's possible full-grown size.